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%I #14 Oct 10 2013 16:27:00
%S 0,0,1,1,2,3,4,4,5,7,7,9,10,10,11,13,14,15,16,17,18,19,20,22,24,25,25,
%T 26,27,28,31,32,34,34,37,37,39,40,41,43,44,45,47,48,49,49,52,55,56,57,
%U 58,59,60,62,64,65,67,67,69,70,70,73,76,77,78,79,82,84,86,87,88,89,91
%N a(n) = floor(prime(n)/4).
%C a(n)*4 + A039702(n) = A000040(n).
%H Reinhard Zumkeller, <a href="/A075518/b075518.txt">Table of n, a(n) for n = 1..10000</a>
%t Floor[Prime[Range[80]]/4] (* _Harvey P. Dale_, Dec 27 2011 *)
%o (PARI) a(n) = prime(n) \ 4; \\ _Joerg Arndt_, Aug 04 2013
%o (Haskell)
%o a075518 = (`div` 4) . a000040 -- _Reinhard Zumkeller_, Oct 10 2013
%Y Cf. A075519.
%K nonn,easy
%O 1,5
%A _Reinhard Zumkeller_, Sep 19 2002